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author | Robert Griesemer <gri@golang.org> | 2021-08-05 13:24:15 -0700 |
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committer | Robert Griesemer <gri@golang.org> | 2021-08-06 20:34:51 +0000 |
commit | 0d7dc417eaebd35249994bfd5cf211df9bf457c6 (patch) | |
tree | a97725bf356d9d5c20da6f3b8d55b49f3f0dfb17 /src/cmd/compile/internal/types2/typestring.go | |
parent | 09d82689ed899d601a9f4b5615d67025dcdb958b (diff) | |
download | go-0d7dc417eaebd35249994bfd5cf211df9bf457c6.tar.gz go-0d7dc417eaebd35249994bfd5cf211df9bf457c6.zip |
[dev.typeparams] cmd/compile: change types2.Union API to accept a list of Terms
Instead of providing a list of tildes and types, use a list of
Terms to create a Union, with suitable accessors.
Define the (exported) notion of a Term representing a union term.
This simplified various uses and also will be easier to extend
should we want to add more information to a Term in the future.
Change-Id: I52fd73938bfa11bac60adbf10580b6d0680df4f1
Reviewed-on: https://go-review.googlesource.com/c/go/+/340250
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
Diffstat (limited to 'src/cmd/compile/internal/types2/typestring.go')
-rw-r--r-- | src/cmd/compile/internal/types2/typestring.go | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/cmd/compile/internal/types2/typestring.go b/src/cmd/compile/internal/types2/typestring.go index ead17ba2f3..cb7cf73a62 100644 --- a/src/cmd/compile/internal/types2/typestring.go +++ b/src/cmd/compile/internal/types2/typestring.go @@ -129,7 +129,7 @@ func writeType(buf *bytes.Buffer, typ Type, qf Qualifier, visited []Type) { case *Union: // Unions only appear as (syntactic) embedded elements // in interfaces and syntactically cannot be empty. - if t.NumTerms() == 0 { + if t.Len() == 0 { panic("empty union") } for i, t := range t.terms { |